Frame for the back of a chair



FIG. 1 is a front perspective view of a frame for the back of a chair showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left elevational view thereof;

FIG. 6 is a right elevational view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof; and,

FIG. 9 is the perspective view of another preferred embodiment.

The portions shown in broken lines form no part of the claimed design. 

CLAIM The ornamental design for a frame for the back of a chair, as shown and described. 